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TableCellCollection.Clear Metode

  • Referensi

Definisi

Ruang nama:
System.Web.UI.WebControls
Rakitan:
System.Web.dll

Menghapus semua TableCell objek dari TableCellCollection.

public:
 virtual void Clear();
public void Clear ();
abstract member Clear : unit -> unit
override this.Clear : unit -> unit
Public Sub Clear ()

Penerapan

Clear()

Contoh

Contoh berikut menunjukkan cara menggunakan Clear metode untuk menghapus semua TableCell objek dari baris tengah tabel dan menggantinya dengan objek baru TableCell .

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    int numrows = 5;
    int numcells = 6;
    int counter = 1;
 
    private void Page_Load(Object sender, EventArgs e) 
    {
        // Create a table.
        for (int rowNum = 0; rowNum < numrows; rowNum++) 
        {          
            TableRow rw = new TableRow();
            for (int cellNum=0; cellNum<numcells; cellNum++) 
            {
                TableCell cel = new TableCell();
                cel.Text=counter.ToString();
                counter++;
                rw.Cells.Add(cel);
            }
            Table1.Rows.Add(rw);
        }
    }

    private void Button_Click(Object sender, EventArgs e)
    {
        Table1.Rows[2].Cells.Clear();
        for (int cellNum = 0; cellNum < numcells; cellNum++) 
        {
            TableCell cel = new TableCell();
            cel.Text="***";
            Table1.Rows[2].Cells.Add(cel); 
        }
    }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>TableCellCollection Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <h3>TableCellCollection Example</h3>
    <asp:Table id="Table1" runat="server" />
 
    <asp:Button id="Button1"
         Text="Replace Row 3 With ***"
         OnClick="Button_Click"
         runat="server" />

    </div>
    </form>
</body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    Dim numrows As Integer = 5
    Dim numcells As Integer = 6
    Dim counter As Integer = 1

    Sub Page_Load(sender As Object, e As EventArgs)
        ' Create a table.
        Dim rowNum As Integer
        For rowNum = 0 To numrows - 1
            Dim rw As New TableRow()
            Dim cellNum As Integer
            For cellNum = 0 To numcells - 1
                Dim cel As New TableCell()
                cel.Text = counter.ToString()
                counter += 1
                rw.Cells.Add(cel)
            Next
            Table1.Rows.Add(rw)
        Next
    End Sub         

    Sub Button_Click(sender As Object, e As EventArgs)
        Table1.Rows(2).Cells.Clear()
        Dim cellNum As Integer
        For cellNum = 0 To numcells - 1
            Dim cel As New TableCell()
            cel.Text = "***"
            Table1.Rows(2).Cells.Add(cel)
        Next
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>TableCellCollection Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <h3>TableCellCollection Example</h3>
    <asp:Table id="Table1" runat="server" />
    <p>&nbsp;</p>
    <asp:Button id="Button1"
         Text="Replace Row 3 With ***"
         OnClick="Button_Click"
         runat="server" />

    </div>
    </form>
</body>
</html>

Keterangan

Gunakan metode ini untuk menghapus semua TableCell objek dari TableCellCollection dan mengatur Count properti ke 0.

Catatan

Metode ini menghapus TableCell objek dari TableCellCollection, tetapi tidak menghapus TableRow dari Table kontrol. Pastikan juga untuk menghapus TableRow jika Anda ingin menghapus baris sepenuhnya dari tabel.

Berlaku untuk

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